<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <link rel="stylesheet" href="./CSS/index.css">
</head>

<body>
  <h1>迪西</h1>
  <p>啦啦</p>
  <span>啵儿</span>

  <script src="./JS/index.js"></script>
  <script>
    document.querySelector("p") = function click() {
      alert("你发现我咯!")
    }
  </script>
</body>

</html>